77results about How to "Prevent mutual separation" patented technology

A junction box used for making electrical connections to a photovoltaic panel. The junction box has two chambers including a first chamber and a second chamber and a wall common to and separating both chambers. The wall may be adapted to have an electrical connection therethrough. The two lids are adapted to seal respectively the two chambers. The two lids are on opposite sides of the junction box relative to the photovoltaic panel. The two lids may be attachable using different sealing processes to a different level of hermeticity. The first chamber may be adapted to receive a circuit board. The junction box may include supports for mounting a printed circuit board in the first chamber. The second chamber is configured for electrical connection to the photovoltaic panel. A metal heat sink may be bonded inside the first chamber. The first chamber is adapted to receive a circuit board for electrical power conversion, and the metal heat sink is adapted to dissipate heat generated by the circuit board.

The present invention relates to a grounding structure, and a heater and a chemical vapor deposition apparatus having the same. The grounding structure comprises: a grounding mount having a housing for receiving a grounding connector that serves to guide a ground current to a ground receiver; a grounding clamp located at the housing, the grounding clamp having a cylindrical form with an open portion to communicate inside and outside and holding a grounding connector in such a manner as to bring the surface and inner surface of the grounding connector into contact with each other; a pair of jaws protruding from the outer surface close to the open portion and extending in parallel with the outer surface, while keeping a distance from each other as much as the width of the open portion; an interference reinforcing member fastened to the jaws, for reinforcing the bonding force between the grounding clamp and the grounding connector; and a ground wire for connecting the outer surface of the grounding clamp with the grounding mount to transfer the ground current to the grounding mount. By increasing the bonding force between the grounding clamp and the grounding connector, it is possible to restrain the formation of a clearance and thus prevent the damage on the grounding connector due to arcing.

The invention discloses a reinforcing steel bar structure of a hinge joint. The reinforcing steel bar structure comprises a plurality of restraining structures, stirrups and straight reinforcing steel bars, wherein the restraining structures, the stirrups and the straight reinforcing steel bars are fixed into a gap of the hinge joint, and the height direction is defined to be the y axis. Each restraining structure comprises M restraining reinforcing steel bars and N pairs of folding plates, each pair of folding plates are fixed to the wall faces of two adjacent concrete beams through fastening pieces respectively, L restraining reinforcing steel bar holes are formed on the folding faces of the folding plates, the central axes of all opposite restraining reinforcing steel bar holes of the folding plates are located in a straight line parallel to the y axis, one end of each restraining reinforcing steel bar penetrates through the corresponding restraining reinforcing steel bar hole with the central axis located in the straight line parallel to the y axis, the other end of each restraining reinforcing steel bar is bent and is attached to the top face of the corresponding concrete beam, the hoops are arranged between every two adjacent restraining structures, and all the hoops and all the bent ends of the restraining reinforcing steel bars are bound with the straight reinforcing steel bars to form a reinforcing steel bar net. The reinforcing steel bar structure of the hinge joint solves the problem that safety of a bridge is affected due to the fact that a reinforcing steel bar structure of an existing hinge joint is poor in shearing resistance performance and poor in tensile property and the hinge joint can be easily damaged.

The invention provides a hanging structure for hanging a lamp. The hanging structure comprises a hanging hook, a movable buckle and a casing, wherein the movable buckle can be rotationally mounted on the hanging hook corresponding to the hanging hook; the hanging hook has a first end; the movable buckle has a second end; the movable buckle rotates corresponding to the hanging hook, so that the first end and the second end are contacted to form a closed ring or are separated from each other; the casing coats the hanging hook and the movable buckle; and when the first end and the second end are contacted to form the closed ring, the casing coats the connected place of the first end and the second end to prevent the separation of the first end and the second end. The hanging structure, provided by the invention, has the characteristic of disassembly, and can be convenient to disassemble the lamp.

The invention discloses a function testing device for an electronic product. The function testing device comprises a tester, a support frame and an electronic product, and is characterized in that the tester abuts against the top end of the support frame, the support frame is rotatably mounted in the middle of the support frame, the electronic product is placed on the upper surface of the center of one end of the support frame, a fixing base is fixedly installed at the bottom end of the interior of the support frame, a conveying frame is fixedly installed in the support frame, a clamping device is slidably installed on the periphery of the conveying frame, a rotating shaft is rotatably installed in the conveying frame, the outer surface of the rotating shaft is sleeved with a limiting bush, and the top end of a battery column is fixedly connected with a limiting frame. According to the invention, the electronic product is clamped and transported through the support frame, so that the electronic product can be fed and discharged in a rotating and sliding manner so as to avoid the feeding and discharging of the electronic products by workers and improve the testing efficiency of the electronic products.

A wheel frame made of a fibrous composite comprises a plurality of arc-shaped frame strips. Each arc-shaped frame strip is provided with a foaming body made of a foaming material, and an outer fibrous composite layer which wraps the foaming body and is made of the fibrous composite. Connection surfaces are respectively formed at the two ends of each arc-shaped frame strip, the arc-shaped frame strips are connected to be annular through the connection surfaces of the outer fibrous composite layers, and a supporting surface is formed on the connection portion of every two adjacent connection surfaces for the arc-shaped frame strips. The wheel frame made of the fibrous composite is light and can not be broken easily.